Collapsible-tube brush.



No. salmo. Ptenfed Aug. l5, |899. A. svmonns.

CLLAPSIBLE TUBE BRUSH.

(Application led Feb. 27, 1898.)

(No Model.)

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UNITED STATES PATENT OEEICE.

JOSEPH A. SYMONDS, OF NEWTON, MASSACHUSETTS.-

COLLAPSIBLEiTUBE BRUSH.

SPECIFICATION forming part of Letters Patent No. 631,000, dated August 15, 1899.

' Applicationled February 27, 1896. Serial No. 581,043. (No model.)

To a/ZZ whom it may concern:

Be it known that I, JOSEPH A. SYMoNDs, a citizen of the United States, residing at Newton, in the county of Middlesex and State of Massachusetts, have invented a new and useful Improvementin Collapsible-T ube Brushes, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part of this specification, in explaining its nature.

The invention relates to a collapsible tube having secured to its delivery end bristles held and arranged in a conical form over an outlet-opening in the neck of the tube and also to the means employed for so holding the bristles and also to a cap for maintaining the bristles in shape and'closing the tube.

I will describe the invention in detail in connection with the drawings, wherein- Figure l is aview in elevation of a collapsible-tube brush having the features of my invention. Fig. 2 is a View enlarged in vertical central section of the neck of the tube, the brush and the cap being shown as applied to the neck and covering the brush. Figs. 3, 4, and 5 are similar views representing modi-v ed forms of the invention and to which reference will hereinafter be made.

The form of the invention which Ifconsider the most desirable is that shown in Fig. 2. The collapsible section A of the tube or package is made of the metal usually employed for such purpose and is of the usual shape of such collapsible tubes, the lower end la being sealed or closed by being iiattened and folded and turned upon itself in the usual manner of closing the ends of such tubes. At the other end of the tube there is a neck of, having a central hole d2, forming an outlet from the cavity of the tube. The neck has formed upon it the straight surface CL3, extending to the inclined surface lct and rising from a shoulder a5. Below this shoulder is a section d6 of greater diameter than the section a3 and which rises from a shoulder UF, and below this shoulder is the threaded section a4 of greater diameter than the section fd".

The bristles forming the brush B are arranged in the form of a hollow cone, the upper or outer ends of the bristles coming together at the apex b over the outlet a?, and a small chamber b is formed above the upper end of the neck by the converging bristles. The bristles are secured in their conical form against the tapering section d4 of the neck and the straight section a3, preferably as represented in Fig. 2that is, by means of a ring C of a size to slip over the section a6 of the neck and of a form to compress the lower ends of the bristles against the surfaces a3 d4 of the neck, the upper part c of the sleeve being conical, as represented in Fig. 2. The bristles are locked together and to the sleeve and neck by glue or other adhesive material, and the sleeve O is united to the neck below the bristles by prick-punchin g, as represented at c or in any other desired way.

By shaping the upper part of the neck as described and forming the ring as specilied the bristles are securely attached in conical form to the neck and in small compass or space, so that a sightly and desirable finish is provided. The tube is closed by means of a cap D, having a conical section or top d of a size to hold the bristles in their conical form when applied thereto. This conical section extends to a shoulder d', which is so arranged as to come in contact with the upper edge of the section c of the sleeve, and from the shoulder there extends the cylindrical section d2, which is of a size and length to cover the ring O and screw upon the section a4 of the neck, the section d2 of the cap having an interior screw-thread to engage the threaded section of the neck.

It isgdesirable when the cap is applied that the corner where'the shoulder d joins the conical section should bear against the bristles, or, in other words, there should be no space or cavity between this point, the bristles, and the upper edge of the ring O. I prefer to provide the cap with Va packing (Z3 of cork, rubber, or other elastic or resilient material, placed within it to bear against the shoulder, as represented in Fig. 2, and Aheld therein by a groove or recess or auyother desired way.

In Fig. 3 the neck is represented as having a recess extending inward from its upper end, the inner wall of which is conical and the outer wall of which is straight, and in this recess the bristles in their conical form are secured by means of a conical ring which surrounds the bristles at their base and binds IOO them against the conical surface of the neck,-

outer Wall of the neck is bent or turned inward upon the sleeve and the bristles.

vIn Figs. 3 to 5, inclusive, E represents the rec'e'ssin the neck of the tube c, the conical binding sleeve or ring c' the packing-piece, and e2 the outer wall of the neck,within which the recess is formed. These parts, however, are not essentially different from corresponding parts found inv Fig. 2.

VIt is desirable whichever form of construction is employed that the cap or cover be so shaped that its conical section conform to the shape of the bristles and its shoulder come into contact with the packing-piece or its equivalent at its juncture with the bristles, and thus serve to completely seal the neck at that point.

It will be observed that by supporting the inner surface of the assembled bristles at their lower end upon a conical surface and that by binding them to said tapering surface by a tapering sleeve or sleeve-section the bristles arey brought to assume a conical shape, and thus provide a structure in which the shape of the brush is always maintained by the pressure of the bristles toward each other and especially toward the point. The obj ect ofuthis part of the invention is to provide a brush having a small pointed end, through which the contents of the tube may be passed and by whichthe said contents may be more accurately placed than where the brush is of the ordinary type. The structure also provides a brushwhich will not break down in use, the bristles coperating to sustain the shape of the brush, as above specified. Another advantage arises from the fact that the brush is not only shaped conically, but its shape is maintained in use, and it thus always readily enters the cavity of the lcap and receives it without breaking down.

It lWill be seen that the device as completed has an applying end which is conical in shape, havinga hollow central passage communicating vwith the interior of the tube, and that the contents of the tube are forced by compressing the tube through said passage and thro ugh the conical applying end.

It will be seen that the brush is in the shape of a short frustum of a cone having a broad base, that the bristles are of thesame length, which provides a iiat outer end, that this forms a brush which is short, stiff, maintains its shape, and serves because of its stiffness to prevent the escape of the contents of thechamber in the brush and the tube except when pressed therefrom, the sides of the brush upon the application of pressure to the iiuid contents in the cavity of the brush resiliently opening to permit the escape of a small quantity of the liquid during the application of pressure from the center of the end and then immediately closing upon the removal of the pressure to close the chamber.

l am aware of the patent to J. B. Davids,

' No. 226,500, dated April 13, 1880, and disclaim anything therein shown and described.

Having thus fully described my invention,

I claim and desire to secure by Letters Patent of theUnited Statesl. A collapsible tube or packageA having a neck provided with an outlet `andvlfitlf a' conical exterior surface orsec'tioiis'urroimding said outlet and a brush of bristle's'in the form of a short, broad, sti cover, the baseof which is applied to said conical section orsurface and held thereto by an exterior bindingring or holder, and the said binding-ring o 'r holder, the inner surface of which is also conical and which is adapted to secure the lower edge of the brush to said conical section or surface and to cause'the bristles to take and maintain a conical form, andthe outer end of v which brush is flat, Wherebya brush wifha small outer end is obtained and the bristles which form it caused to sustain each other, as

and for the purposes described.

2. In a collapsible-tubebrush ofthe chai"- acter specified, the collapsible tube, itsneck having an outlet and a conical outer surface or section surrounding said outlet, a brush of bristles in the form of a short, broad,y sti cone with a fiat top, abindingring having an interior conical surface covering said brush of bristles at its base and fastening them to the conical surface of said neck and a cover having an interior conical cavity and flattop of the size of the conical brush, a shoulder extending therefrom at the base of the conical section, and a packing upon said shoulder adapted to be held between it and the upper edgejof the outer binding-ring of the brush,and alsoadapted to bear against the conical side of the brush adjacent to the surface of said binding-ring, as and for the purposes set forth.

3. A collapsible-tube brush or package having a collapsible section and a hollow conical applying device at one end of said section, the sides of which conical applying device are practically of the same thickness throughout, and the chamber of which conical applying device is connected with the interior of the collapsible tube through an opening in 'o'ne end thereof, as and for the purposes described.

4. A cap for a collapsible-tube brush or package having a conical central cavity and flat top to receive and contain the conical 1sides and iiat top of the brush, a shoulder df, a packing cl3 thereon, and a cylindrical section d2 extending from the shoulder, in combination with the hollow conical brush, its holdin g-neck and IIO collapsible tube, as and for the purposes described.

5. A brush end having a conical support or surface a4, a short and broad cone of bristles 5 having a at top and a binding-sleeve for securing said bristles to said conical support or surface having a conical inner surface which surrounds the base of the cone and binds it to the said tapering surface, whereby the bristles are held in a stiff inclined relation to each other in the shape of afrust-um of a cone,

JOSEPH A. SYMONDS.

W'itnesses:

F. F. RAYMOND, 2d, J. M. DOLAN. 

